(<=>
(and
(instance ?PM ParticulateMatter)
(part ?P ?PM)
(approximateDiameter ?P
(MeasureFn ?S Micrometer))
(greaterThan 10 ?S)
(greaterThan ?S 2.5))
(exists (?PM10)
(and
(instance ?PM10 CoarseParticulateMatter)
(part ?PM10 ?PM)))) 
Geography.kif 68216832 
An object is an instance of PM and a self connected object is a part of the object and the approximate diameter of the self connected object is a real number micrometer(s) and 10 is greater than the real number and the real number is greater than 2.5 if and only if there exists the object0 such that the object0 is an instance of PM10 and the object0 is a part of the object 
(<=>
(and
(instance ?PM ParticulateMatter)
(part ?P ?PM)
(approximateDiameter ?P
(MeasureFn ?S Micrometer))
(greaterThanOrEqualTo ?S 2.5))
(exists (?PM25)
(and
(instance ?PM25 FineParticulateMatter)
(part ?PM25 ?PM)))) 
Geography.kif 68506860 
An object is an instance of PM and a self connected object is a part of the object and the approximate diameter of the self connected object is a real number micrometer(s) and the real number is greater than or equal to 2.5 if and only if there exists the object5 such that the object5 is an instance of PM2.5 and the object5 is a part of the object 
(=>
(and
(instance ?HAZE AtmosphericHazing)
(eventLocated ?HAZE ?AREA)
(instance ?AREA AtmosphericRegion)
(instance ?PARTICULATE ParticulateMatter)
(locatedAtTime ?PARTICULATE
(WhenFn ?HAZE) ?AREA)
(visibilityInMeteorology ?AREA
(WhenFn ?HAZE)
(MeasureFn ?VISIBILITY Kilometer)))
(and
(greaterThan ?VISIBILITY 2)
(lessThan ?VISIBILITY 5))) 
Weather.kif 9921005 

(=>
(instance ?PM ParticulateMatter)
(exists (?P ?ATMOSPHERE ?S)
(and
(instance ?ATMOSPHERE AtmosphericRegion)
(located ?PM ?ATMOSPHERE)
(part ?P ?PM)
(approximateDiameter ?P
(MeasureFn ?S Micrometer))
(greaterThan 1000 ?S)))) 
Geography.kif 67946803 
